Windows 10: Error code 0xc00021a

Error code 0xc000021a,I have my USB stick with my media creation tool installed plugged in. I'm also using a hard drive to install windows onto, When booting up my pc it comes up with that error code and just restarts after like 5 seconds. There is nothing I can do in the windows error blue screen.I've already tried reinstalling windows tool a couple times, and even tried a different hard drive.Ive bought new ram since then. Still same problem i cant download certain windows versions. Blue screen often cannot download current geforce drivers. I dont know what else to do ive tried everything i

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BIOS error codes

So I have motherboard with installed small LED screen, which presents BIOS error codes.

Where can I find a list of those errors. And I don't mean beep codes, but the "number" codes.

Ex after installing sound card, the motherboard startup fails with the code 15.

Example picture of code is here.

 

BSOD and error code 0xc00021a on Windows 10.

Original Title: Blue screen

I have recently bought a Samsung 850 Evo and installed windows onto it. After almost every reboot of my computer however, I have experienced BSODs with a variety of error messages including 0xc00021a (the one I had most recently). I have had to reinstall
windows multiple times within the last week as automatic repair, booting into safe mode, running chkdsk and resetting does nothing.

Any help would be greatly appreciated.

PC specs (If useful at all):

Intel i7 2600

AMD r9 270x

Asus P8H61 Plus motherboard

800w 80+ bronze psu (Don't know the brand)

8gb Ram

Windows 10 Home

 

Windows 10 will not activate Error code 0x803F7001

Possibly there can be the problem with Microsoft activation Server, so your Windows 10 is not activated. In this scenario, you need to wait and verify if it is the issue from Microsoft’s side. But if you are getting error code 0x803f7001, you can also try these steps:

1. Open Settings app. Then go to Update and security > Activation screen > Change product.
2. Type your Windows edition product key and click Next.
3. You’ll get We couldn’t activate Windows error message.
4. Retry steps 1-3 then type your 25-characters unique product key.
5. Wait for the process to complete, Windows 10 is activated.

Hope something helps this problem